From fc4a62f65cbd2d5d2c247ed4fbf64a05e6485859 Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 29 Jan 2021 13:05:01 -1000
Subject: [PATCH] tcg/tci: Split out tci_args_rr
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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tci.c | 67 +++++++++++++++++++++++++------------------------------
 1 file changed, 31 insertions(+), 36 deletions(-)

diff --git a/tcg/tci.c b/tcg/tci.c
index 5acf5c38c3..e5aba3a9fa 100644
--- a/tcg/tci.c
+++ b/tcg/tci.c
@@ -184,6 +184,13 @@ static tcg_target_ulong tci_read_label(const uint8_t **tb_ptr)
  *   s = signed ldst offset
  */
 
+static void tci_args_rr(const uint8_t **tb_ptr,
+                        TCGReg *r0, TCGReg *r1)
+{
+    *r0 = tci_read_r(tb_ptr);
+    *r1 = tci_read_r(tb_ptr);
+}
+
 static void tci_args_rrs(const uint8_t **tb_ptr,
                          TCGReg *r0, TCGReg *r1, int32_t *i2)
 {
@@ -422,9 +429,8 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
             break;
 #endif
         CASE_32_64(mov)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = regs[r1];
             break;
         case INDEX_op_tci_movi_i32:
             t0 = *tb_ptr++;
@@ -635,58 +641,50 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
 #endif /* TCG_TARGET_REG_BITS == 32 */
 #if TCG_TARGET_HAS_ext8s_i32 || TCG_TARGET_HAS_ext8s_i64
         CASE_32_64(ext8s)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (int8_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (int8_t)regs[r1];
             break;
 #endif
 #if TCG_TARGET_HAS_ext16s_i32 || TCG_TARGET_HAS_ext16s_i64
         CASE_32_64(ext16s)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (int16_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (int16_t)regs[r1];
             break;
 #endif
 #if TCG_TARGET_HAS_ext8u_i32 || TCG_TARGET_HAS_ext8u_i64
         CASE_32_64(ext8u)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (uint8_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (uint8_t)regs[r1];
             break;
 #endif
 #if TCG_TARGET_HAS_ext16u_i32 || TCG_TARGET_HAS_ext16u_i64
         CASE_32_64(ext16u)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (uint16_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (uint16_t)regs[r1];
             break;
 #endif
 #if TCG_TARGET_HAS_bswap16_i32 || TCG_TARGET_HAS_bswap16_i64
         CASE_32_64(bswap16)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, bswap16(t1));
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = bswap16(regs[r1]);
             break;
 #endif
 #if TCG_TARGET_HAS_bswap32_i32 || TCG_TARGET_HAS_bswap32_i64
         CASE_32_64(bswap32)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, bswap32(t1));
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = bswap32(regs[r1]);
             break;
 #endif
 #if TCG_TARGET_HAS_not_i32 || TCG_TARGET_HAS_not_i64
         CASE_32_64(not)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, ~t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = ~regs[r1];
             break;
 #endif
 #if TCG_TARGET_HAS_neg_i32 || TCG_TARGET_HAS_neg_i64
         CASE_32_64(neg)
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, -t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = -regs[r1];
             break;
 #endif
 #if TCG_TARGET_REG_BITS == 64
@@ -799,21 +797,18 @@ uintptr_t QEMU_DISABLE_CFI tcg_qemu_tb_exec(CPUArchState *env,
             break;
         case INDEX_op_ext32s_i64:
         case INDEX_op_ext_i32_i64:
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (int32_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (int32_t)regs[r1];
             break;
         case INDEX_op_ext32u_i64:
         case INDEX_op_extu_i32_i64:
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, (uint32_t)t1);
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = (uint32_t)regs[r1];
             break;
 #if TCG_TARGET_HAS_bswap64_i64
         case INDEX_op_bswap64_i64:
-            t0 = *tb_ptr++;
-            t1 = tci_read_rval(regs, &tb_ptr);
-            tci_write_reg(regs, t0, bswap64(t1));
+            tci_args_rr(&tb_ptr, &r0, &r1);
+            regs[r0] = bswap64(regs[r1]);
             break;
 #endif
 #endif /* TCG_TARGET_REG_BITS == 64 */
-- 
2.39.5